Why Do the Handbrake Light and ABS Light Come On Simultaneously?

[VanGabrielle]

The simultaneous illumination of the handbrake light and ABS light can be attributed to the following reasons: 1. Severe brake pad wear: The activation of the ABS light and handbrake light is influenced by the brake fluid level inside the vehicle. Once the brake fluid level drops, both lights may come on simultaneously. The decrease in brake fluid level is primarily caused by significant wear of the engine's brake pads, leading to excessive consumption of brake fluid. 2. Insufficient brake fluid: Brake fluid is a specialized fluid in the vehicle. Due to its long replacement cycle and high replacement cost, it is often overlooked during routine maintenance at 4S shops unless the owner specifically requests an inspection. However, once the brake fluid is depleted, it can trigger both the ABS light and handbrake light to illuminate. 3. Generator output voltage too high or too low: The vehicle's generator continuously supplies power to the display system. If the generator's output voltage is either too high or too low, it can cause malfunctions in the display system. The simultaneous illumination of the ABS light and handbrake light may serve as an early warning of generator failure.